1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ahrayia [7]
3 years ago
9

When buying a car, you tell the salesman that you want to make sure the car can go from 0 miles per hour to 60 miles per hour in

5 seconds. You are describing the car's
Physics
2 answers:
romanna [79]3 years ago
8 0
Acceleration.

Acceleration is the rate of change of velocity with time.

So you want to ascertain if it can accelerate from 0 mile/hour to 60 miles/hour in 5 seconds.
MaRussiya [10]3 years ago
4 0
Acceleration....................................... <span />
You might be interested in
xConsider the following reduction potentials: Cu2+ + 2e– Cu E° = 0.339 V Pb2+ + 2e– Pb E° = –0.130 V For a galvanic cell employi
slega [8]

Answer:

Approximately \rm 90\; kJ.

Explanation:

Cathode is where reduction takes place and anode is where oxidation takes place. The potential of a electrochemical reaction (E^{\circ}(\text{cell})) is equal to

E^{\circ}(\text{cell}) = E^{\circ}(\text{cathode}) - E^{\circ}(\text{anode}).

There are two half-reactions in this question. \rm Cu^{2+} + 2\,e^{-} \rightleftharpoons Cu and \rm Pb^{2+} + 2\,e^{-} \rightleftharpoons Pb. Either could be the cathode (while the other acts as the anode.) However, for the reaction to be spontaneous, the value of E^{\circ}(\text{cell}) should be positive.

In this case, E^{\circ}(\text{cell}) is positive only if \rm Cu^{2+} + 2\,e^{-} \rightleftharpoons Cu is the reaction takes place at the cathode. The net reaction would be

\rm Cu^{2+} + Pb \to Cu + Pb^{2+}.

Its cell potential would be equal to 0.339 - (-0.130) = \rm 0.469\; V.

The maximum amount of electrical energy possible (under standard conditions) is equal to the free energy of this reaction:

\Delta G^{\circ} = n \cdot F \cdot E^{\circ} (\text{cell}),

where

  • n is the number moles of electrons transferred for each mole of the reaction. In this case the value of n is 2 as in the half-reactions.
  • F is Faraday's Constant (approximately 96485.33212\; \rm C \cdot mol^{-1}.)

\begin{aligned}\Delta G^{\circ} &= n \cdot F \cdot E^{\circ} (\text{cell})\cr &= 2\times 96485.33212 \times (0.339 - (-0.130)) \cr &\approx 9.0 \times 10^{4} \; \rm J \cr &= 90\; \rm kJ\end{aligned}.

5 0
3 years ago
Plz someone help me Asap​
-Dominant- [34]

Answer:

all I know is C

are there more questions? anyone?

-KARL IS STOOPID

Explanation:

6 0
3 years ago
A 0.450 kg soccer ball has a kinetic energy of 119 J.
Anastaziya [24]

Answer:

V is approximately = 23m/s

Explanation:

Kinetic energy = ½ mv²

Where m= mass = 0.450kg

V= velocity =?

K. E = 119J

Therefore

K. E = ½ mv²

Input values given

119= ½ × 0.450 × v²

Multiply both sides by 2

119 ×2  = 2 × 1/2 × 0.450 × v²

238= 0.450v²

Divide both sides by 0.450

238/0.450 = 0.450v²/0.450

v² = 528.89

Square root both sides

Sq rt v² = sq rt 528.89

V = 22.998m/s

V is approximately = 23m/s

I hope this was helpful, please rate as brainliest

8 0
3 years ago
Hat is the approximate pressure of air at sea level?
Tanya [424]
c) 101kPa

Hope I helped! ( Smiles )
5 0
3 years ago
Read 2 more answers
A refrigerator has a mass of 88 kg. What is the weight of the refrigerator?
posledela

Answer:

I don't think the information is complete

6 0
2 years ago
Other questions:
  • What tripositive ion has the electron configuration [kr] 4d3 ? what neutral atom has the electron configuration [kr] 5s 2 4d2 ?
    11·1 answer
  • What is the amount of displacement of a runner who runs exactly 2 laps around a 400 meter track?
    7·2 answers
  • Astrologists use the positions of the stars to make predictions about the future. Why is astrology a pseudoscience?
    10·2 answers
  • If the magnetic field of an electromagnetic wave is in the +x-direction and the electric field of the wave is in the +y directio
    9·1 answer
  • A spindle connects two wheels with fixed axles by a fan belt. If the effort wheel is larger than the resistance wheel, which axl
    14·1 answer
  • 8. What is the kinetic energy of a car that has a mass of 1000 kg and is moving at a speed of 30 m/s?
    7·1 answer
  • two boys started runing stright to ward each other from two pionts 100m aparts.one run at speed of 4m/s and other at 6m/s.how fa
    15·1 answer
  • Moving a neutral wire in a(n) ____ field will induce a(n) _____.
    15·1 answer
  • Terrence connects several lightbulbs in a parallel circuit. Electricity flows through the circuit, and all the bulbs light up. 
    9·1 answer
  • How far does a car travel in 30.0 s while its velocity is changing from 50.0 km/h to 80.0 km/h at a uniform rate of acceleration
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!